Touch screen system and method of driving the same

a technology of touch screen and touch screen, which is applied in the direction of instruments, computing, electric digital data processing, etc., can solve the problems of difficult to detect a contact position, difficult to grasp the contact position, and difficult to realize the minute contact position recognition through the finger conta

a technology of touch screen and touch screen, which is applied in the direction of instruments, computing, electric digital data processing, etc., can solve the problems of difficult to detect a contact position, difficult to grasp the contact position, and difficult to realize the minute contact position recognition through the finger conta

US20120262411A1Active Publication Date: 2012-10-18SAMSUNG DISPLAY CO LTD
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  • Touch screen system and method of driving the same
  • Touch screen system and method of driving the same
  • Touch screen system and method of driving the same

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Embodiment Construction

[0039]Hereinafter, certain exemplary embodiments according to the present invention will be described with reference to the accompanying drawings. Here, when a first element is described as being coupled to a second element, the first element may be directly coupled to the second element or may be indirectly coupled to the second element via one or more third elements. Further, some of the elements that are not essential to the complete understanding of the invention are omitted for clarity. Also, like reference numerals refer to like elements throughout.

[0040]Hereinafter, the present invention will be described with reference to the accompanying drawings.

[0041]FIG. 1 is a block diagram illustrating the structure of a touch screen system according to an embodiment of the present invention.

[0042]The touch screen system 100 according to the embodiment of the present invention includes a plurality of first lines 112 (X1, X2, . . . , and Xn) extending in a first direction, a plurality o...

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Abstract

A touch screen system includes a touch screen panel including first lines, second lines crossing the first lines, a plurality of sensing cells formed at the crossing regions between the first lines and the second lines, a driving circuit for sequentially applying a driving signal to the first lines, a first sensing circuit for receiving capacitance change information sensed by the first lines, and generating a first sensing signal corresponding to the capacitance change information, a selecting unit for selectively coupling the first lines to the driving circuit or the first sensing circuit, a second sensing circuit for receiving the capacitance change information sensed by the sensing cells from the second lines and generating a second sensing signal corresponding to the capacitance change information, and a processing unit for receiving a sensing signal from the first sensing circuit and / or the second sensing circuit and determining a detected touch position.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority to and the benefit of Korean Patent Application No. 10-2011-0035729, filed on Apr. 18, 2011, in the Korean Intellectual Property Office, the entire content of which is incorporated herein by reference.BACKGROUND[0002]1. Field[0003]Aspects of embodiments according to the present invention relate to a touch screen system, and more particularly, to a touch screen system capable of multi-touch recognition and a method of driving the same.[0004]2. Description of Related Art[0005]A touch screen panel is an input device capable of selecting the indication content displayed on the screen of an image display device, by using a human hand or an object in order to input the command of a user.[0006]Therefore, the touch screen panel is provided on the front face of the image display device to convert a contact position selected by the human hand or the object into an electrical signal. Therefore, the instruction content...

Claims

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Application Information

Patent Timeline
18 Oct 2012
Publication
US20120262411A1
IPC
G06F3/041; G06F3/045; G09G5/00
CPC
G06F3/0416; G06F3/03545; G06F3/044; G06F3/04162; G06F3/04166; G06F3/0446; G06F3/0442
Inventors
AHN, SOON-SUNG; JANG, HYOUNG-WOOK